[1] Univ Hosp Birmingham NHS Fdn Trust, Dept Ophthalmol, Birmingham, W Midlands, England
[2] Univ Birmingham, Acad Unit Ophthalmol, Coll Med & Dent Sci, Inst Inflammat & Ageing, Birmingham, W Midlands, England
[3] Sandwell & West Birmingham Hosp NHS Trust, Birmingham Midlands Eye Ctr, Birmingham, W Midlands, England
[4] Heart England NHS Fdn Trust, Dept Ophthalmol, Birmingham, W Midlands, England
[5] Herpes Simplex Keratitis Patient Grp, Birmingham, W Midlands, England
[6] Worcestershire Acute Hosp NHS Trust, Dept Ophthalmol, Worcester, Worcs, England